Piston-rod lubricator.



No. 897,448. PATENTED SEPT. 1, 1908.

E. BLAKE. PISTON ROD LUBRIGATOR.

APPLIOAIIOI FILED APR. 9, 1908.

PATENTEDSEPT. 1, 1908.

E. BLAKE. PISTON ROD LUBRIGATOR. APPLICATION FILED APR. 9, 1 908.

a suns-sum}.

U .l. Tillillf) l. t "lllflia Spcoification of Letters Patent.

Patented Sept. 1, 1008.

Application filed April 9, 1908. Serial No. 426,032.

To nil whom it mc l/ roar/1'12:

lie it known that l.l ln\\'.\nnll1..u-;| :.usub-- jcct oi thc liilng o" (trout liritain, residing at licnora. ()ntatio. tanadu. hayc in cntcd cur lain now and [twin] lniproycincuts in listoin liod. laihricators. of which thc 'l'ollo'w ing is uspcvitication.

My invention rclatcs to piston rod. lubrictn tors.

'l hc [HOscnt inycution, whilc intcndcd tor usc in any t'uniwction wIu-rc a piston rod is cniploycih is cspc ially udaptcd for use with the piston rods nl' locomotive air pumps used for supplying: llu' air bralu- \:\'l(l'1l.

'l h prcscut iuycntimi has f r its object the n'ovisirm of a .norcl lubricatnr oi the class sot iorth which will :nttcnnaticall and propcrly lubrics'ttc the air cylindcr, the stcaiu cylinder, and the piston packing, rcgardlcss oi" the spccd at which the. pump is opcratiug': which may bo casily 'lillcd withoutstopping the pump; will ccasc {coding and thus cconomize t be (ptant'ity of oil uscd, whcn the. pump is stoppcc will. preycnt the acc'uinulatnni of gum around thc. l'ccd valve and brake 'val cand around tho diaphragm and pin yalyc in the pump governor as well as. preventing sticking of the triple valves; and otherwise being of such. cllic-ienc-y thatgroaning of the pump will be obviated, cutting of tho parts proventcd, thus lcligt-lioning the lift: of the pump, besidcs being of such iinproycd construction that it can. be readily placcd. in position and will permit rcpackin; ol' the glands of both the an and stean'i cylinders without rec airing rclnm'al of the lubricator.

he. invention is set forth fully hereinafter and its novelicatures are recited in the--ap pended claims.

In the accompanying drawings:'-Figuio 1 is a viow showing the lubricator in use on an air pump such as used on locomotives; Fig. 2, a )lan vicw oi the. luhrioa-tor, showing the cap broken away; Fig. 3, a vertical section through the li.iln'i(.-ator; Fig. 4., a. plan VlOW of one 0t the. swabs; Fig. 5,- a plan View of tho retaining plate for tho swabs; and. Fig. 6, a

detail section of one of the oil-holc covers.

The invention has been shown in connection with an air pump of the type usually used on lot-om: to supply tho bra-kc system. hi'icause it is peculiarly adapted to this use. although it is not limited to such use as it may be employed in conncction with any piston which rcquircs lubrication.

1 represents the steam and and the air gland bu hing i is cxtcrnally t :rc: dud. and ordinarily l'(t'(l\'l the gland l, \\n at .bntas my lubricaior is'intcndvd to sci-cw on to this bushing", tin nrdinanv gland. is oniittcd.

'lhc lubricutor (up ti is circular and has tho .nut a" and T which st'l'cu's on tho land l:u:-:b--- inn -I' thus holding thc. put-hing; iollowcl' plain l" in position and tallii'igj 'inplar'c ol' the gland itscli. 'lhc. up (5 'uitluillr radially spl t. swabs S m" hlt' or other suitubh: matcrial, lll(.\.(. swabs; living: split so that they may hc rcadily removed or rcplacwl and they boar upon tbc pistonv 5. Rcsting on tho. swabs S is an annular plate 8' having holcs S" for the. passagc of thc oil and the inscrtinn oi the lingcrs whcn. plat-in; or rcmoyiugj the plutc. 'l'he plu-tc is held a'lgaiust tho swabs by tho cap or cover, dcscrihcd prcscntly, and prcycnts them from bcing torn by the rcciproca- -tions of the piston 'lhc ea p or cover consists of two semi-circular parts 9 and 10, each of which has a semi-circular sci'c\\'-tl'n'caded flange 1]. to en.- gage the screw threads 12 on the intcrioi' of the cup 6. Each of the. cap scctions 9 and 10 has dowels o1 lugs 11. to lit in openings 12 in the other section and each cap sect-ion has oil holes 13 tl'irough. which the Oil may be introduced into the cup 6 to saturate the swab 8. Those oil holes are closed by covers 14 consisting of a picco of. spring metal having a bent part 14 t .n'ough which a. pin 15 loosely passes, said pin hcing riveted at 15 to tho under side of the ca The cover has a dcprcsscd part- 14" to insure. its retention over tho ()pflllillg l3 and it also has a. thumb piece 14pcr1nitti11ig easy .i'nai'iipulat-ion. This con struction of cover is substantially dust n'oot and incapablc of being accidentallydisplaced. by tho jarring of the pump.

The interior diameter of the cup 6 is greater than the outcr diainctor of the. gland 3 on the steam end of the. pump, thus icrinitting the packing of both. gland. 3 and g and 4. without removing the cup (5 from the piston rod 1. who to pack cithcf fit tho glands, the cap is unscrowcd and tho sections 0 and. 10 scparatcd and removed from the piston rod 1. The gland 3 can then he slipped inside the cup 6 until the uppcr gland is rcpackc-d, 01' the. cup 6 oan ho un:.:crcwed and slipped up over the gland if, and the louzz-r I t gland l rnpaclu-d, the l'clt or swab ['iicccs 8 having; ln'si bccn reunited in tdt'll instnm'c.

After the desired ropaclt'iin has been accom pliz-ihcd, the parts will he iciurncd to their former position. This l'eatnro ol the in\'cntion .rontlcns the lnhrii-alor adapted for use in connection with air pumps for air brake .'.-:tcins.

ill the .lulu'icalor is properly applied, living; :-;('.'l(.\\'t(l neither too light nor loose, it will. antomatically swab the piston l, a i| \'in; just cmnurh oil at each stroke. rcg :ardl .rss oi the. speed of tln pump, to lubricate the air cylindcr. From actual tests .l. have found that this luln'icalor will auton'iatirrally lubricate the air and steam cylinders and the piston rod packing, regardless of the speed of the )umo and may be filled withoutsto )in the l l h pump; it will cease l'ccdirig' and thus ceonoinizc the usiol" the oil when the un.1p is 51.0 ipcd, doubling the life of the air cylinder and piston rod packing and minimize rc boring the air \'lin|.ler.s and renewing the rings; prevent over heating and. cutting. accumulation of gum around the discharge valves, the diaphri'igm, and. pin valves in thc .nnnp gm'crnor, and around the feed and lira-kc valves, nevcnting sticking of the triple valves on. the engine tcmlcr, prm'cntgroaning, and many other dra-wbaclis which the ordinary lulnicattn" will not obviate, bcsidc which it. may be readily placcd. in position and permit l'tpilC-lilllg oi. the glands of both the air and steam cylinders without necessitating removal of the lubricator.

lfl aving thus described my irwcntion, what I claim as new,a-nd desire to secure by Letters Patent, is

1.. In a piston rod lubricat-or, the coinbination with a. lubricating cup and a piston swab contained therein, of asplit cap removably attached to the mouth of said cup.

2. In a piston rod luliirica-tor, the combination with a solid or integral lubricating cup and a piston swab contained therein, of a split cap reinovably attached to said cup having means for the secureinent together of its )arts.

3. n a piston rod lubricator, the combinaion with a lubricating cup and a piston swab contained therein, of a split (up rcnioralily attachedv to the mouth ol" said cup having lugs and openings on its respective parts received. one within the other.

-t. in a. piston rod luln'icatrn'. the combination with a lubricating cup baring screw threads at; its mouth, and. av piston swab contained, therein, ol a split cap, the seclions of which are i'liroclly cn; .fa;cd with the srrcw-tln'cads on the cup 'lor holding the swab t-hcrcin.

in. a piston rod luliricalor, the coinbiuation with. a lubricating cup having :scrow-threads at its mouth, and apiston swab containml thcrcir'i, oi" a. split cap, the sections ol which. are directly engaged-with the scrmr-tlmia(ls on the cup for holding the swab therein, and (lowcls on the cap sections for holding said. sections togctlnn.

(i, in a ltll)'|ll.'il-t'0l, a cover i'or an oil food opening comprising a pin, and a cover having, a. bent or looped resilient part loosch mounted on the pin.

7. in a piston rod, luln'icat-rnr, the combination with a piston rod, a gland. bushing, and packing for the piston rod, of a lubri eating cup screwed. on to the gland bushing and adapted to act on the packing in said gland bushing, a luljiricant applying device contained within. the cup, and a cap for the cup.

The coinbii'iation with. a steam-air pump comprising air nJitbStltHJ'l cylinders, pistons in said. cylirnlcrs and. a. piston rod connecting the pistons, oi packing, glands for the l'es 'i'cctive cylinders through which the piston rod plays, alulnficating cup reinovebly attached to one of the gland bushings and of suflicient size to rcccire the gland of the other packing gland when slipped along the piston rod, and a. removable cap for the lubricating cup.

In testimony whereof, I hereunto a-[liX my signature in presence of two witnesses.

EDWARD BLAKE.

\Vitnesses N. Elis'rns, GEO. JAMES. 

